Workers’ Compensation · Primary-source case analysis

Illinois Midwest: Ongoing Home Health Care Still Required UR and IMR Review

By Aneeta Mishra and Timothy Chan

Published April 22, 2026 · Updated October 18, 2026

Decision: Illinois Midwest Ins. Agency LLC v. WCAB, No. B344044 (Cal. Ct. App. Nov. 10, 2025).

Review status, checked October 17, 2026: The California Supreme Court granted review on January 21, 2026, in S294463. The Court of Appeal opinion is not binding precedent while review is pending. The review order permits citation for persuasive value and for the limited purpose of identifying a conflict in authority. This page explains the Court of Appeal’s decision, not a final Supreme Court ruling. See the Supreme Court’s January 21 review order (PDF) and official opinion status page.

An appellate court’s summary refusal to review another WCAB ruling does not mean that court adopted the ruling’s reasoning. That was one important limit in Illinois Midwest: The Court of Appeal rejected the Board’s description of earlier writ denials as appellate approval of Patterson. It separately held that the finite home-health request before it belonged in UR and IMR. Both points matter when choosing what authority a treatment argument can actually support. Illinois Midwest, slip opinion, pages 18–26. The review-granted status above limits the opinion’s present use.

Home health services were repeatedly authorized

Rodriguez’s physician requested home health care in six-week increments after a November 2016 brain injury. At least eight requests were approved before a later six-week request was denied through timely UR. The judge treated the ongoing need as a reason to bypass that denial, and the Board relied on Patterson. The Court of Appeal distinguished a new, finite request from stopping an existing authorization without UR. Illinois Midwest, slip opinion, pages 2–5, 17–18.

Each disputed request followed the statutory path

For this post-2013 injury and timely medical-necessity decision, the court read section 4610.5 as assigning review to IMR. It also rejected extending the statute’s 12-month duration for certain denials or modifications to turn an approval into twelve months—or indefinite years—of authorized care. The duration the physician requested still mattered. The court did not independently decide how many home-health hours Rodriguez needed. Illinois Midwest, slip opinion, pages 14, 20–21, 25–26.

Summary writ denials did not establish appellate approval

The Board had characterized summary denials in Rivota and Burton as decisions upholding its approach. The Court of Appeal explained that a summary denial of a petition for review decides no issues and has no precedential value. A summary describing the Board’s ruling was not an appellate opinion approving it. Before citing such a matter, distinguish the underlying panel reasoning, the later writ result and a reasoned appellate holding. Illinois Midwest, slip opinion, page 24.

The court returned medical-necessity questions to UR and IMR

The court annulled the Board’s decision and remanded; it did not adjudicate medical necessity. Footnote 6 expressly left open different facts, including termination without UR or an agreement to forgo UR/IMR. A case about a finite request and timely review cannot alone decide those different scenarios. Nor does the Supreme Court’s grant of review make this Court of Appeal reasoning binding while review is pending. Illinois Midwest, slip opinion, pages 25–27.

Key takeaways

• Submit timely authorization requests for each treatment period.
• Challenge medical-necessity denials through IMR.
• Do not equate prior approval with permanent authorization.
• Separate procedural defects from the merits of medical necessity.

Discussed in: Illinois Midwest v. WCAB: Is Ongoing Care Exempt From Utilization Review?; California Workers’ Compensation Medical Care and Benefits FAQ.